Consider adding ObserverMethod.notify() method which also accepts EventMetadata ------------------------------------------------------------------------------- Key: CDI-592 URL: https://issues.jboss.org/browse/CDI-592 Project: CDI Specification Issues Issue Type: Feature Request Components: Events Reporter: Martin Kouba Fix For: 2.0 .Final {code:java} // Make the original method also default so that new impls don't need to implement two methods default void notify(T event) { // No-op } // The container should always call this method... default void notify(T event, EventMetadata metadata) { notify(event); } {code} This should not break existing implementations. The truth is a custom impl will not be forced to implement any {{notify()}} method. But I think the benefits are worth it.